clock paradox

clock paradox

The statement, resulting from Einstein's special theory of relativity, that if one clock is moving with respect to another, the moving clock will be found to be running slower than the other. The paradox is of little importance in surveying except when clocks at widely separated locations are to be synchronized by moving a clock from the one location to the other. In an experiment in which four cesium clocks were carried around the world, it was found that moving the clocks in the direction of rotation of the Earth slowed the moving clocks up, while moving them in the opposite direction speeded them up.

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Industry/Domain: Earth science
Category: Mapping science
Company: American Congress on Surveying & Mapping
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Related terms

paradox

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A statement that seems self-contradictory, yet may nevertheless be true.

paradox

Archaeology; Evolution

A seemingly absurd or contradictory, though often true, statement.

paradox

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A statement or doctrine seemingly in contradiction to the received belief.

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planet

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area of error

Earth science; Mapping science

A figure within which the true location of a point whose location has been determined by measurement is believed to lie, with stated degree of probability.

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Industry/Domain: Weather Category: Clouds

noctilucent cloud

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